Electrical Troubleshooting

SymptomProblemSolution

Undercharged electrical system

Excessive electrical load from added accessories.

Remove accessories or install higher output alternator.

 

Excessive engine idling.

Increase engine rpm when heavy electrical load is used.

 

Poor electrical connections on battery, ground strap, starter, or alternator.

Inspect and clean as necessary.

 

Defective battery.

Test battery.

 

Defective alternator.

Test charging system.

Battery uses too much water

Cracked battery case.

Check for moisture and replace as necessary.

 

Defective battery.

Test battery.

 

Battery charging rate too high.

Test charging system.

Batteries will not charge

Loose or corroded connections.

Clean and tighten connections.

 

Sulfated or worn-out batteries.

See your authorized servicing dealer or engine distributor.

 

Stretched poly-vee belt or defective belt tensioner.

Adjust belt tension or replace belt.

Starter will not crank

PTO engaged (if equipped).

Disengage PTO.

 

Marine gear control engaged.

Disengage marine gear.

 

Loose or corroded connections.

Clean and tighten loose connections.

 

Low battery output voltage.

See your authorized servicing dealer or engine distributor.

 

Faulty start circuit relay.

See your authorized servicing dealer or engine distributor.

 

Blown main system fuse.

Replace fuse.

Starter cranks slowly

Low battery output.

See your authorized servicing dealer or engine distributor.

 

Crankcase oil too heavy.

Use proper viscosity oil.

 

Loose or corroded connections.

Clean and tighten loose connections.

Starter and hour meter functions; rest of electrical system does not function

Blown fuse on magnetic switch.

Replace fuse.

Entire electrical system does not function

Faulty battery connection.

Clean and tighten connections.

 

Sulfated or worn-out batteries.

See your authorized servicing dealer or engine distributor.

 

Blown main system fuse.

Replace fuse.

DPSG,OUOD007,335-19-20020104